One more thing...this document library, in order for it to be useful it needs to have some sort of searchable and indexable metadata. Without it its just a bunch of files that only means something to the original content creator. (So first make sure they're doing it right! SharePoint maybe?)

Second thing, your backups need to also include this index/metadata or its useless when restored. So test your backups after every couple months - restore it to completely separate machine and make sure it actually works.